222001010421 has 4 divisors (see below), whose sum is σ = 296001347232. Its totient is φ = 148000673612.

The previous prime is 222001010327. The next prime is 222001010437. The reversal of 222001010421 is 124010100222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222001010421 - 2⁷ = 222001010293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222001010421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001010321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37000168401 + ... + 37000168406.

It is an arithmetic number, because the mean of its divisors is an integer number (74000336808).

Almost surely, 2^222001010421 is an apocalyptic number.

It is an amenable number.

222001010421 is a deficient number, since it is larger than the sum of its proper divisors (74000336811).

222001010421 is an equidigital number, since it uses as much as digits as its factorization.

222001010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74000336810.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222001010421 its reverse (124010100222), we get a palindrome (346011110643).

The spelling of 222001010421 in words is "two hundred twenty-two billion, one million, ten thousand, four hundred twenty-one".